Experiment
← Apple iPhone, iPad, iPod | Alternative Energy-Electric Cars → |
Introduction:
During the experiment potentiometer is arranged in a manner that makes it possible for ADC to be carried out. Values obtained from ADC are changed to digital. This is then transferred to LCD to be displayed.
Various codes were developed to aid in the experiment. They include:
Put the code here
Variable ‘adc_value’ refers to the value of the adc returned by the function ‘read_adc()’. POT means 0x48 representing the pot in the ADCON0 which is sent to variable ‘setup adc’. This helps in setting up the adc and starting the ADC as it sets ADON=1. Meanwhile, loop 1 wehich is the fuction read adc reads values for adc. The return is stored in variable ‘adc value’. It is in the function that variables are defined while GO=1 is positioned to begin conversion. Till the conversion is over, GO==1 plays a major role.
Once the changing/convertion is over num is where the obtained data is transferred to. It is then taken back to the main function. The value adc is transferred to LCD to be displayed. After this, the whole systems/the program goes back to the main function performing similar operations of constantly reading adc values.
Result & Conclusion: It is established that the entire program was free from errors. Additionally the program was put into test through developmental boards. The exercised generated a program that was capable of setting up adc, reading data from the adc values, converting them to digital and showing the results through LCD. This can be seen in the figure shown below;
TAKE THE PICTURE OF THE LCD AND PUT IT HERE AKHI
In conclusion, the experiment was a success in teaching how to go about setting up of adc as well as using microcontroller in taking readings from potentiometer as well as displaying it via LCD.
Exercise 2:
Aim:
- To standardize the ADC
- To compute the resolution of ADC at different within the curve
- To compute errors in percentages of the points within the
Introduction: the experiment entails calibration of ADC. This is done by taking records of varying outputs of potentiometer. For instance at 0 Volt adc value which corresponds with it is recorded. From the outcome atable is generated which in turn help in obtaining adc. A formula for adc resolution is input voltage/digital ouput of adc. For instance at 5 volts at 1023 maximum digital out put; adc resolution is 5/1023=0.0048875
Conclusion: it is established that differing values of results from potentiometer, the corresponding ADC values after measuring and tabulation shows that adc resolution is 0.0048875.
Exercise 3:
Aim:
- To change the program developed in exercise 1 to show real voltage as read from potentiometer through the LCD
Introduction: the experiment is carried out like in experiment 1. And data is shown via LCD. However, instead of convering the data into digital, it is changed into analog value then showed via LCD. Conversion of adc value to the equivalent voltage was done by use of the formula; Analog=(adc_value/100) * (493.1034/10);
Major codes of the program:
In order to show the values obtained (voltage) through LCD ‘analog’ as a variable is transferred into the function labelled ‘display_voltage_value’. It is worth noting that this conitunes while the code enclosed in loop 1.
Result and Conclusion: The experiment entailed modification of experiment 1 in order to depict voltage read from the potentiometer on the LCD. The whole exercise worked without errors and attained it objectives of showing adc values and voltage on LCD
Exercises 4:
Aim:
- To adjust the program in the experiment to utilize LDR rather than potentiometer
Introduction: Resistors that depend on light do generate electric volt once an incident light fall on the resistor. LDR is linked to developmental board. It is worth to note that the set up of the program is similar to that in experiment 1. Nonetheless, it is different in terms of initialization of ADCON0 register. For this experiment ADCON0 is set at 0x80. ADC is switched on by utilizing ADON=1
Following is the main code:
Put the code here
The rest of the processe is similar as that carried previously in loop 1. The function adc reads the values adc from LDC. It eventually takes back the value to the program where adc value is stored. The program is distinct from the previous one as adc values are sent to PORTB lighting up LEDs representing adc values from LDR. This happens continuously since it is enclosed in loop 1.
Result and Conclusion: the experiment used LDR in accepting outputs as well as performing conversion of adc values to be shown in LEDs of the PORTB. The program was free of error and worked well in attaining the objectives. To establish that the program was working, it was observed that with varying fall of incident light on the resistor, there were varying values on LEDs.
Main Conclusion:
Various appliances that are analog need to be interfaced to a microcontroller for us to make calculations. In order to attain this, there is need of converting analog data into digital through adc conversion. A greater foundation is on use of adc program by help of LDR and potentiometer.
- Alternative Energy-Electric Cars
- Computer Engineering
- Apple iPhone, iPad, iPod
- Working with Computers
![]() |
Ramona R.
Sparks, NV
|
|
Thank you for doing such stellar work on my paper. How anyone could write a paper this well on a subject this boring, is beyond me. When I tried to write it myself, I thought it would have put my professor to sleep! Your writers made it sound so interesting! I really appreciate that. Thanks a million! |
![]() |
Steve Y.
Ft. Worth, TX
|
|
I would just like to say that I am tremendously happy with the two papers that were written for me by the EssaysEmpire.com writers. They were just what I ordered….only better. |
![]() |
Stephanie K.
Stowe, VT
|
|
Dear Sirs: Just a quick note to let you know that I appreciate your working on my paper so quickly. I did get it in time to turn it in for the deadline, even though I hadn’t given you much notice. I made a very good grade on it and was much relieved. Thanks again. You rock. |
![]() |
Tommy Davids
Singapore, CH
|
|
EssaysEmpire.com knows how to do the things that it takes to instill confidence in their customers. They can be counted on every time, to deliver high quality service and high quality writing at prices that we can afford. I would never use any other writing company. “If it ain’t broke, don’t fix it.” It ain’t broke! |
![]() |
Kaylie B.
Casper, WY
|
|
Thank you, EssaysEmpire.com, for being the one writing service that I can always depend upon. You are reliable, honest and you do great work. I have been happy with every order I have placed with you |
![]() |
Sylvia B.
Lakeview, MA
|
|
Your writers did an excellent job writing my four papers last semester. I don’t think I could have possibly made it through the semester without any help of EssaysEmpire.com. I deeply appreciate the help |
![]() |
Emily H.
Norman, OK
|
|
My writer revealed to me that when he isn’t working for you, he is teaching at a major university. He also told me that a lot of the other writers who work for you are professors. That is impressive! No wonder I got an A+ on my paper! |
![]() |
Mary R.
New York
|
|
Writer #48376 was very easy to work with. My professor made some changes to his requirements after he had assigned the paper. All I had to do was call your customer service and request to speak with the writer directly. Was able to relay the changes that my professor wanted, and he (writer #48376) accommodated them with no problem. I thought that was great. No headaches and perfect work. I couldn’t ask for a better experience! |
![]() |
Tiffany E.
Monroe, LA
|
|
I am 100% satisfied with the writer that you assigned to my project. This person understood exactly what I needed, even though I’m not the best communicator and the instructions were tedious and difficult. I felt certain I would have to send my paper back for a number of revisions, but I didn’t. The writer was able to convey exactly what I wished to express and he did it in record time!Thanks for everything. EssaysEmpire.com is the greatest! |
![]() |
Kathy M.
Las Cruces, NM
|
|
To EssaysEmpire.com: Thank you for my outstanding paper. When I read it, I knew that I would get an A+ on it. Also, thanks for adding all of the pertinent details that I asked you to customize. You did a brilliant job. Just brilliant. |
![]() |
Sharon Q.
Lexington, OK
|
|
Working with your writers is always such a pleasure. Thanks again. |
![]() |
Pierre W.
Memphis, TN
|
|
There are four things that I look for in a good writing service. #1. They have to be fast. A good writing service won’t miss an important deadline. #2. A good writing service will let customers actually talk to the writer who is working on their customer’s papers, so the customer can work out important details. #3. A good writing service will have a user-friendly website that is easy for the customer to use and #4, a good writing service will offer quality guarantees. EssaysEmpire.com meets all of this criteria and more. EssaysEmpire.com is the best writing service and has the reputation to prove it. I wouldn’t even consider using another writing service since experiencing the excellence that is EssaysEmpire.com! |
![]() |
Shirley R.
Casper, WY
|
|
I would be honored to recommend your writing service to all of my friends. I don’t usually recommend anything unless I truly believe it to be a good thing. EssaysEmpire.com is a good thing! |
![]() |
Beverly S.
Cambridge, MA
|
|
I appreciate the help your wring service gave me with my biology paper. I have never cared much for biology. It is a tough subject for me to grasp. This is why I needed so much help with my paper. The writer absolutely understood the whole topic and turned out work that would have made anyone proud. Thanks a million for the great paper. |
![]() |
John G.
Erie, PA
|
|
Thanks goes out to the writers who presented me with the best paper I have ever turned in. My professor was so impressed with it that he took excerpts from it to put in his class handouts on how to write the perfect paper. EssaysEmpire.com, you made me one proud student today! |
![]() |
Quincy S.
Cambridge, MA
|
|
You guys did a super job on my paper. The work definitely exceeded my expectations and eased my anxiety. This was the first time I had hired a writing service. The transaction was seamless. I would use you guys again in a heartbeat! No questions asked. You’re the best, hands down. |
![]() |
Phil E.
South Hadley, MA
|
|
So often, when one deals with customer service, he or she is treated rudely. That was not the case with EssaysEmpire.com. The agents were helpful and friendly, knowledable and concerned. I, for one, was astounded with their competence. When it came down to the actual written material that I ordered, it was much better than I had anticipated. There are clearly some expert writers who work for EssaysEmpire.com. I would rate this writing service as exceptional, 5 stars out of 5 stars. I will happily return when I need help with another written work. |
![]() |
Melissa C.
Rochester, NY
|
|
I am completely satisfied with the paper I purchased from your company. I only wish I had known about you last year when I took an F grade for not being able to complete a paper on time. The work you did was marvelous. Whenever I find myself falling behind in my school work, I will be sure to pass along some of my more difficult written assignments to you |
![]() |
Maddie P.
Seattle, WA
|
|
The EssaysEmpire.com website is so great! There are no mysteries to be solved. They give you the full layout about what they have to offer and how much it costs. No surprises. I had a couple of questions about the different options and their customer service rep was so friendly! She answered all my questions. I ordered my first paper and it was so well written that I got an A+ on it! Thank you, EssaysEmpire.com! |
![]() |
Trilly M.
Spokane, WA
|
|
I just had to let you know how much I appreciated receiving a paper back that was of quality that high. I will recommend your writing service to other people I know. You guys do great work. |